CA1319958C - Radio portative avec fonction de maintien de balayage a pile - Google Patents

Radio portative avec fonction de maintien de balayage a pile

Info

Publication number
CA1319958C
CA1319958C CA000559465A CA559465A CA1319958C CA 1319958 C CA1319958 C CA 1319958C CA 000559465 A CA000559465 A CA 000559465A CA 559465 A CA559465 A CA 559465A CA 1319958 C CA1319958 C CA 1319958C
Authority
CA
Canada
Prior art keywords
channels
channel
scanning
signal
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA000559465A
Other languages
English (en)
Inventor
Tsuguo Maru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of CA1319958C publication Critical patent/CA1319958C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)
CA000559465A 1987-02-20 1988-02-22 Radio portative avec fonction de maintien de balayage a pile Expired - Fee Related CA1319958C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP37008/1987 1987-02-20
JP3700887 1987-02-20

Publications (1)

Publication Number Publication Date
CA1319958C true CA1319958C (fr) 1993-07-06

Family

ID=12485662

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000559465A Expired - Fee Related CA1319958C (fr) 1987-02-20 1988-02-22 Radio portative avec fonction de maintien de balayage a pile

Country Status (7)

Country Link
US (1) US4977611A (fr)
EP (1) EP0279697B1 (fr)
KR (1) KR910008738B1 (fr)
CN (1) CN1014854B (fr)
AU (1) AU605245B2 (fr)
CA (1) CA1319958C (fr)
HK (1) HK84297A (fr)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01220919A (ja) * 1988-02-29 1989-09-04 Toshiba Corp 無線電話装置
US20010050943A1 (en) * 1989-08-03 2001-12-13 Mahany Ronald L. Radio frequency communication network having adaptive communication parameters
US7606575B2 (en) * 1988-08-04 2009-10-20 Broadcom Corporation Remote radio data communication system with data rate switching
ATE101445T1 (de) * 1988-10-06 1994-02-15 Siemens Ag Verfahren zum energiesparenden betrieb von gefahrenmeldern in einer gefahrenmeldeanlage.
ATE116464T1 (de) * 1988-10-06 1995-01-15 Siemens Ag Verfahren zum energiesparenden betrieb von gefahrenmeldern in einer gefahrenmeldeanlage.
JPH02261226A (ja) * 1989-03-31 1990-10-24 Mitsubishi Electric Corp 移動電話機
DE3918696A1 (de) * 1989-06-08 1990-12-13 Philips Patentverwaltung Kennungssuche bei nachrichtentechnischen geraeten
US5224152A (en) * 1990-08-27 1993-06-29 Audiovox Corporation Power saving arrangement and method in portable cellular telephone system
GB2250892A (en) * 1990-12-14 1992-06-17 Philips Electronic Associated A method of operating a radio communications system
US5152006A (en) * 1991-02-25 1992-09-29 Motorola, Inc. Receiver controller method and apparatus
US7558557B1 (en) 1991-11-12 2009-07-07 Broadcom Corporation Low-power messaging in a network supporting roaming terminals
WO1993007691A1 (fr) * 1991-10-01 1993-04-15 Norand Corporation Reseau local a radiofrequences
US7415548B2 (en) * 1991-05-13 2008-08-19 Broadcom Corporation Communication network having a plurality of bridging nodes which transmits a polling message with backward learning technique to determine communication pathway
US6374311B1 (en) * 1991-10-01 2002-04-16 Intermec Ip Corp. Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery
TW198141B (fr) * 1991-09-16 1993-01-11 Motorola Inc
US6407991B1 (en) 1993-05-06 2002-06-18 Intermec Ip Corp. Communication network providing wireless and hard-wired dynamic routing
CA2080050C (fr) * 1991-10-09 1997-01-21 Hidehiko Norimatsu Controleur d'alimentation electrique et synthetiseur de frequences utilisant celui-ci
US5353341A (en) * 1991-10-21 1994-10-04 At&T Bell Laboratories Cordless telephone arranged for operation in a frequency hopping system
JPH05130158A (ja) * 1991-11-08 1993-05-25 Sony Corp 送受信装置
EP0553862B1 (fr) * 1992-01-31 2001-11-21 Canon Kabushiki Kaisha Appareil électronique portable comprenant une unité de transmission-réception radio et une unité de calcul
JPH07105740B2 (ja) * 1992-04-14 1995-11-13 ユピテル工業株式会社 節電型マイクロ波検出器
JPH0613898A (ja) * 1992-06-29 1994-01-21 Nec Corp 周波数シンセサイザ
AU676202B2 (en) * 1992-10-14 1997-03-06 Nec Corporation Paging receiver and radio frequency channel searching method for the same
US5487181A (en) * 1992-10-28 1996-01-23 Ericsson Ge Mobile Communications Inc. Low power architecture for portable and mobile two-way radios
US7917145B2 (en) 1992-11-02 2011-03-29 Broadcom Corporation Radio frequency local area network
US8509260B2 (en) 1993-08-31 2013-08-13 Broadcom Corporation Modular, portable data processing terminal for use in a communication network
NZ276006A (en) * 1993-11-01 1997-11-24 Ericsson Telefon Ab L M Cellular radio: scanning of neighbouring control channels
US5471655A (en) * 1993-12-03 1995-11-28 Nokia Mobile Phones Ltd. Method and apparatus for operating a radiotelephone in an extended stand-by mode of operation for conserving battery power
US5430416A (en) * 1994-02-23 1995-07-04 Motorola Power amplifier having nested amplitude modulation controller and phase modulation controller
US5590396A (en) * 1994-04-20 1996-12-31 Ericsson Inc. Method and apparatus for a deep-sleep mode in a digital cellular communication system
US5511235A (en) * 1994-05-02 1996-04-23 Motorola, Inc. Apparatus for detecting a signaling channel during scanning including a controlled frequency converter circuit and a controlled filter bandwidth, and a method therefor
US5594951A (en) * 1994-10-07 1997-01-14 Motorola, Inc. Method and apparatus for saving power in a radiotelephone
US5610919A (en) * 1995-01-24 1997-03-11 Motorola, Inc. Network identification information placement architecture for messaging system having roaming capability
US5625351A (en) * 1995-01-24 1997-04-29 Motorola, Inc. Messaging system having roaming capability
US5682147A (en) * 1995-01-24 1997-10-28 Motorola, Inc. Method and apparatus for selecting a receive frequency in a communication receiver
US5600312A (en) * 1995-01-24 1997-02-04 Motorola, Inc. Messaging system and method having roaming capability and controlled group messaging
GB2303999B (en) * 1995-08-03 2000-01-26 Nokia Mobile Phones Ltd Radio telephones and methods of operation
US5754956A (en) * 1995-09-20 1998-05-19 Motorola, Inc. Methodical scanning method and apparatus for portable radiotelephones
US5940746A (en) * 1995-12-29 1999-08-17 Motorola, Inc. Channel scanning apparatus and method
JP3518152B2 (ja) * 1996-03-27 2004-04-12 ソニー株式会社 携帯用端末装置
US5924017A (en) * 1996-09-04 1999-07-13 Skytel Communications, Inc. Method and system for adaptively setting wake-up intervals in paging devices
JP3433019B2 (ja) * 1996-09-12 2003-08-04 株式会社東芝 移動通信機とそのバッテリセービング方法
US5978379A (en) 1997-01-23 1999-11-02 Gadzoox Networks, Inc. Fiber channel learning bridge, learning half bridge, and protocol
US5978690A (en) * 1997-02-25 1999-11-02 Lucent Technologies Inc. Reducing power consumption in low noise radiophone amplifiers
US6081733A (en) * 1997-04-16 2000-06-27 Motorola, Inc. Communication control apparatus and method
US6332078B1 (en) 1997-05-22 2001-12-18 Casio Computer Co., Ltd. Receiver device and receiving channel setting method
JP4001686B2 (ja) * 1997-11-19 2007-10-31 株式会社日立国際電気 受信機及び間欠フレーム同期方法及び携帯端末
JPH11177479A (ja) 1997-12-15 1999-07-02 Nec Corp 無線電話機の入力信号走査装置および方法
US7430171B2 (en) 1998-11-19 2008-09-30 Broadcom Corporation Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost
US6897697B2 (en) 1999-06-28 2005-05-24 Broadcom Corporation Current-controlled CMOS circuit using higher voltage supply in low voltage CMOS process
US6424177B1 (en) * 1999-06-28 2002-07-23 Broadcom Corporation Universal single-ended parallel bus
US6424194B1 (en) * 1999-06-28 2002-07-23 Broadcom Corporation Current-controlled CMOS logic family
US6911855B2 (en) 1999-06-28 2005-06-28 Broadcom Corporation Current-controlled CMOS circuit using higher voltage supply in low voltage CMOS process
GB9920615D0 (en) * 1999-09-02 1999-11-03 Koninkl Philips Electronics Nv Battery economising in a communications system
US6340899B1 (en) * 2000-02-24 2002-01-22 Broadcom Corporation Current-controlled CMOS circuits with inductive broadbanding
KR100403733B1 (ko) * 2001-02-09 2003-10-30 삼성전자주식회사 이동통신 단말기에서 전원 제어 장치 및 방법
US6864558B2 (en) 2001-05-17 2005-03-08 Broadcom Corporation Layout technique for C3MOS inductive broadbanding
US7212534B2 (en) 2001-07-23 2007-05-01 Broadcom Corporation Flow based congestion control
US6887423B2 (en) * 2001-09-26 2005-05-03 E. I. Du Pont De Nemours And Company Process for making a stretchable nonwoven web
US6624699B2 (en) 2001-10-25 2003-09-23 Broadcom Corporation Current-controlled CMOS wideband data amplifier circuits
JP2003133972A (ja) * 2001-10-29 2003-05-09 Fujitsu Ltd 無線送信機を有する電子装置
KR20030044673A (ko) * 2001-11-30 2003-06-09 엘지전자 주식회사 휴대용 단말기의 절전 기능 전환 방법
US7295555B2 (en) * 2002-03-08 2007-11-13 Broadcom Corporation System and method for identifying upper layer protocol message boundaries
US7346701B2 (en) * 2002-08-30 2008-03-18 Broadcom Corporation System and method for TCP offload
US7934021B2 (en) * 2002-08-29 2011-04-26 Broadcom Corporation System and method for network interfacing
US7313623B2 (en) * 2002-08-30 2007-12-25 Broadcom Corporation System and method for TCP/IP offload independent of bandwidth delay product
EP1554842A4 (fr) * 2002-08-30 2010-01-27 Corporation Broadcom Systeme et procede de manipulation de trames qui ne fonctionnent pas
US8180928B2 (en) * 2002-08-30 2012-05-15 Broadcom Corporation Method and system for supporting read operations with CRC for iSCSI and iSCSI chimney
US7340615B2 (en) * 2003-01-31 2008-03-04 Microsoft Corporation Method and apparatus for managing power in network interface modules
JP2004328263A (ja) * 2003-04-23 2004-11-18 Mitsubishi Electric Corp Dsrc車載器
KR100694210B1 (ko) * 2005-04-01 2007-03-14 삼성전자주식회사 다채널 방송의 절전형 채널스캔 시스템 및 그 방법
US7598811B2 (en) 2005-07-29 2009-10-06 Broadcom Corporation Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading
US7362174B2 (en) 2005-07-29 2008-04-22 Broadcom Corporation Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection
US7598788B2 (en) 2005-09-06 2009-10-06 Broadcom Corporation Current-controlled CMOS (C3MOS) fully differential integrated delay cell with variable delay and high bandwidth
CN101090393B (zh) * 2006-06-14 2010-05-12 中兴通讯股份有限公司 降低传真信号音检测开销的装置及其方法
US7899488B2 (en) * 2006-07-31 2011-03-01 Motorola Mobility, Inc. Method and apparatus for extending network discovery range
KR100863357B1 (ko) * 2006-09-13 2008-10-15 주식회사 팬택앤큐리텔 휴대용 방송 수신장치 및 이의 방송 신호 재검출 방법
JP4945548B2 (ja) * 2008-02-08 2012-06-06 ルネサスエレクトロニクス株式会社 検波回路とそれを含むrf回路およびそれらを内蔵する携帯機器
EP2222124B1 (fr) * 2009-02-18 2012-07-11 Austriamicrosystems AG Procédé de réveil pour récepteur multicanaux et récepteur de réveil multicanaux
CN102332913A (zh) * 2011-07-08 2012-01-25 美芯集成电路(深圳)有限公司 一种使用锁相环技术实现的40/49MHz监护系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962553A (en) * 1973-03-29 1976-06-08 Motorola, Inc. Portable telephone system having a battery saver feature
US4181893A (en) * 1975-06-26 1980-01-01 Motorola, Inc. Battery saver for a tone coded signalling system
JPS593635Y2 (ja) * 1979-09-29 1984-02-01 日本電気株式会社 選択呼出受信機
US4419765A (en) * 1979-10-12 1983-12-06 Keith H. Wycoff Signal absence detector
JPS56116341A (en) * 1980-02-19 1981-09-12 Nec Corp Radio channel switching system in communication
KR900007702B1 (ko) * 1980-10-01 1990-10-18 모토로라 인코포레이티드 통신 시스템에서의 메세이지 수신 장치
US4631496A (en) * 1981-04-06 1986-12-23 Motorola, Inc. Battery saving system for a frequency synthesizer
JPS60182825A (ja) * 1984-02-29 1985-09-18 Nec Corp 無線電話方式
JPS6143025A (ja) * 1984-08-07 1986-03-01 Nec Corp 無線通信方式
JPS6198030A (ja) * 1984-10-18 1986-05-16 Nec Corp バツテリ−セ−ビング受信装置
JPH06105884B2 (ja) * 1986-05-06 1994-12-21 日本電気株式会社 無線電話システム
JPS6333021A (ja) * 1986-07-26 1988-02-12 Nec Corp 携帯無線電話機

Also Published As

Publication number Publication date
EP0279697A3 (en) 1990-11-14
CN88101334A (zh) 1988-08-31
EP0279697B1 (fr) 1995-04-26
AU1202288A (en) 1988-08-25
KR890013910A (ko) 1989-09-26
AU605245B2 (en) 1991-01-10
HK84297A (en) 1997-06-27
EP0279697A2 (fr) 1988-08-24
CN1014854B (zh) 1991-11-20
KR910008738B1 (ko) 1991-10-19
US4977611A (en) 1990-12-11

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Legal Events

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MKLA Lapsed
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Effective date: 20030707